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Finding the Fourth Proportional to 490,367.92, 735,550.80 and 130,538.86

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Solution

The fourth proportional to 490,367.92, 735,550.80 and 130,538.86 is: 195,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,367.92 : 735,550.80 = 130,538.86 : x
  2. Step 2: Convert to fraction form
    490,367.92/735,550.80 = 130,538.86/x
  3. Step 3: Cross multiply
    490,367.92x = 735,550.80 × 130,538.86
  4. Step 4: Simplify right side
    490,367.92x = 96,017,962,904.09
  5. Step 5: Solve for x
    x = 96,017,962,904.09/490,367.92
  6. Step 6: Final answer
    x = 195,808.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.